Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow (diffusion pumps F04F9/00; combination of jet pumps with pumps of other than jet type F04B; use of jet pumps for priming or boosting non-positive-displacement pumps F04D)

Child Classifications

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• F04F 5/02 the inducing fluid being liquid
• F04F 5/14 the inducing fluid being elastic fluid
• F04F 5/42 characterised by the input flow of inducing fluid medium being radial or tangential to output flow (cyclones B04C)
• F04F 5/44 Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
• F04F 5/54 Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type